Clamping device for tool standards



Nov. 4, 1947. A. E. RUTTER I CLAMPING DEVICE FOR TOOL STANDARDS Original Filed Oct. 16, 1941 2 Sheets-Sheet l Nov. 4, 1947. A. E. RUT TER 2,430,434

' CLAMPING DEVICE FOR TOOL STANDARDS Original'Filed Oct. 16, 1941 2 Sheets-Sheet 2 Mam ATTORNEY Patented Nov. 4, 1947 CLAMPING DEVICE FOR TOOL STANDARDS 'Alvah E. Rutter, Rockford, 111., assignor to J. 1. Case Company, Racine, Wis., a corporation Uriginal application October 16, 1941, Serial No.

415,153. Divided and this application November 1.2, 1943, Serial No. 510,049

9 Claims. 1

The present invention relates to plows and. more particularly to disk plows, and an object of the invention is to generally improve the construction and operation of implements of thi class. Another object is to improve such a plow in re spect to the adjustments thereof.

A further object is to provide improved adjustments of the disks of such a plow to provide for different conditions of operation.

Further objects are to provide improved expedients for the realization of the above objects.

Further objects and advantages will become apparent from the following specification and an nexed drawings in which Figure 1 is a right side elevation looking diagonally forward of so much of a disk plow as necessary to illustrate the invention.

Fig. 2 i a similar view with parts removed.

Fig. 3 is a similar view with. parts broken away but not otherwise in section.

Fig. 4 is a viewsimilar to Fig. 1 but with the parts in a substantially different arrangement.

The parts illustrated are used in and constitute parts of a disk plow of the type shown and described in the co-pending application of Alvah E. Rutter, Serial 415,153, filed October 16, 1941, now Patent Number 2,351,369, patented June 13, 1944, of which this application is a. division. Such a plow includes a beam I9 suitably supported at the front and rear and constituting in effeet a main frame element for the plow. Beam Iii carries a series of rotatable cutting blades or disks II, only one of which is necessary to be described in the present application, united with beam I by standards I2, the whole being drawn by a tractor or the like not shown, in a manner generally well known and fully disclosed in the above identified co-pending application.

Standards I2 are arranged to be clamped on beam I0 in various positions as required by plowing conditions, as is well known. Since the standards are preferably all alike, it will be nosessary to describe only one, as in the case of disks II. Standard I2 is clamped against a plate generally designated as I3 which is clamped against beam III as will appear. In the present instance, U-bolts generally designated as It and I5 embrace the back side of beam If! as seen in Fig. l, U bolt I4 having a portion I6 extending forwardly through plate I3 above beam I0 and at the rear forwardly above beam ID and forwardly of standard I2, and a portion I9 extending through plate I3 below beam I0 and forwardly of standard 52. Portions I1 and I9 are spaced by plate I3 so as to admit standard I2 between them but without more than necessary clearance, while portions I6 and Plate I3 as more particularly shown in Fig. 2

has a slot which may conveniently or preferably be arcuate in character and through which extends a pin 2|, Fig. 3, engaged in one or another of holes as 22--22 in standard I2 to support the standard against appreciable up-and-down movement. Pin ZI guides standard I2 in arcuate movement about an imaginary center between bolt portions I1 and I9 whereby in effect the pivotal movement is secured without weakening standard I2 by piercing for an actual pivot in the neighborhood of bolt portions I1 and I9. Different sizes of disks such as II can be readily accommodated by placing pin 2! in the appropriate one of holes 22.

As seen in Fig. 3, standard I2 is clamped to plate I3 in the present instance by a plate 23 engaged by nuts 24 and 25 on bolt portions I6 and I8, pin

-2I preferably passing through plate I3 which has a slot 26 similar to above mentioned slot 28. Pin 2| may be maintained in position by a cotter pin or the like 21, a Washer 28 being interposed if desired. Another plate 29 is engaged by nuts 30 and 3| on bolt portions I1 and I9 so as to be clamped against standard I2 and to unite it and plate I3 with beam I0. A structure is thus provided in which standard l2 may be disposed at any desirable angle with beam I0 and in which the whole assembly, or point of attachment of standard I2 may be shifted along beam Ill to any desirable point.

In order not to depend upon the clamping effect of bolts I4 and I5, however, for maintaining the angular adjustment of standard I2, a block generally designated as 32 is provided having an opening for receiving bolt portion I8. Since the reaction of the plowing force is in such a direction as to continuously force the upper end of standard l2 toward the front of the plow, block 32 is in position to receive this forward thrust of standard I2 and positively maintain the standard in adjusted angular position independently of the clamping force of bolts I4 and I5. The block may have any convenient shape within the contemplation of the invention, but in the illustrated embodiment is formed as an irregular polygon, the sides of which are of different lengths and of different spacings from the center of bolt I8. As indicated, the sides may be numbered at 33, 34 and 35, etc., so that it will be convenient to set all the standards in the plow in the same adjustment or to return at a later time to a previous adjustment. As will be apparent, block 32.

is maintained between plates I 3 and 23 and when the parts are assembled they cannot inadvertently get out of adjustment.

As will be understood, standard 52 carries a support element 38 fixed therewith as by bolts 3l31 and carrying a bearing portion 38 journaled on portion 36 in any suitable or well-known manner not shown, and not comprising any part of the present invention. Portion 33 is united to disk I l by any suitable means as by bolts 39.

Bolt portions I5 and 18 may be spaced to plvide any range of adjustment of standard l2 de-- sired and in the present instance block portion 32 as shown in Fig. 4 may be placed on bolt portion l6 if desired, to hold standard l2 in an extreme forward position, under these conditions standard [2 being preferably, although not necessarily, in contact with bolt portion 58. With such adjustment, disk I! will be brought substantially into the position of a so-called one-way disk plow, namely on a substantially horizontal axis. This adjustment of the disk is especially desirable for trash covering and insofar as applicant is aware, has never before been possible with a plow of the type disclosed having individual standards. With the parts in the position shown in Fig. l, plates 23 and 29 and nuts 24, 25, 3E! and 3t clamp the parts rigidly together as above described. It will be noted that bolts i4 and !5 are preferably fitted so as to have no substantial vertical clearance about beam- El] so that in normal operation of the apparatus bolt portion 58 bears downwardly on the top of beam it while bolt portion ll bears upwardly against the underside of beam :8. This in connection with above mentioned block 32 provides positive means for resisting the thrust without depending upon the frictional engagement between the beam and the several plates and standard t2. This applies particularly to the angle adjustment. The frictional engagement in the past has ordinarily been ample to prevent bodily displacement of prior clamping means but at times insufficient to maintain angular adjustment.

The operation of the invention is thought to be clear from the above description, it being noted that the standards as H? may be adjusted angularly relatively to beam EB and the adjustment positively maintained independently of any clamping effect of bolts i4 and I5, and for trash covering or operating as a one-way disk plow, an entirely different positive adjustment of standard l2 can be obtained b placing block 32 on bolt portion it.

The above being a complete description of any illustrative embodiment of the invention, what is claimed as new and desired to-be secured by Letters Patent of the United States is:

1. In a clamping device for uniting a substantially horizontal beam and an upright standard in a disk plow, the combination of a substantially vertical plate, bolt portions spaced apart and extending transversely through the plate, other bolt portions extending transversely through the plate, spaced apart a greater distance than the above mentioned bolt portions and vertically spaced from said above mentioned bolt portions, a spacer block adjustably carried by one of the last mentioned bolt portions and having a plurality of surf aces spaced at varying distances from said bolt portion, said surfaces being adapted to engage said standardrespectively in different positions of said spacer block to positively maintain the adjustment of the standard in various predetermined positions, and clamping mechanism carried by said bolt portions.

2. A clamping and adjusting device for a standard of a disk plow having a beam, said device comprising a clamp engaging the beam and including a U-bolt engaged about the beam and having upper and lower portions passing respectively above and below the beam, a second U-bolt spaced along the beam from the first U-bolt, engaged about the beam and having upper and lower portions passing respectively above and below the beam, a standard adapted to be clamped and disposed between the lower bolt portions and also between the upper bolt portions, the spacing of the lower bolt portions being such as to provide for pivotal adjustment of the standard about a point in the region of the lower bolt portions by sliding between the limits defined by the upper bolt portions, a spacer block disposed on one of the upper bolt portions and having a plurality of surfaces spaced at varying distances from said bolt portion, said surfaces being adapted to. engage said standard respectively at different posi tions of said spacer block to positively maintain the adjustment of the standard, and clamping mechanism on the bolt portions for clamping the beam and standard together.

3. A clamping and adjusting device for. a disk plow having a beam, said device comprising a. clamp engaging the beam and including a U-bolt engaged about the beam and having upper and lower portions passing respectively above andbelow the beam, a second U-bolt spaced along the, beam from the first U-bolt, engaged about the beam and having upper and lower portions passing respectively above and below the beam, a standard adapted to be clamped and disposed between the lower bolt portions and also between the upper bolt portions, the spacing of certain of sa d bolt portions being such as to provide for pivotal adjustment of the standard about a point.

in the region of said bolt portions by sliding between the limits defined by the other bolt portions, a spacer block disposed on one of the upper bolt portions and having a plurality of surfaces spaced at varying distances from said bolt portion, said surfaces being adapted to engage said standard respectively in diiierent positions of said spacer block to positively maintain the adjust ment of the standard in various predetermined.

positions, and clamping mechanismv on the bolt portions for clamping the beam and standard together.

4. A clamping and adjusting device for a standard of a disk plow having a beam and front supporting means and rear supporting means for the beam, said device comprising a clamp engaging the beam and including a plate adapted to be clamped against said beam, 2. standardadapted to be clamped. against the plate, means:

pivotally engaging the standard with the plateat varying distances from the abutment means. with which it is engaged, said surfaces being adapted to engage said standard respectively at different positions of said spacer member for posi tively maintaining the adjustment of said stand-.

ard, and means including said abutment means for clamping said plate, beam and standard to gether.

5. A clamping and adjusting device for a standard of a disk plow, said plow having a beam and front supporting means and rear supportin means for the beam, said device comprisin a clamp engaging the beam and including a plate :adapted to be clamped against said beam, clamp- :ing bolt portions extended in spaced relation through the plate below the beam at either side of said standard, other spaced bolt portions traversing the plate above the beam on either side of said standard, the spacing of the latter Ebolt portions being such as to provide for pivotal :adjustment of said standard by sliding between the limits defined by the latter bolt portions, a spacer block pivoted on one of the latter bolt portions and having a plurality of surfaces spaced at varying distances from the pivotal connection, said surfaces being adapted to engage said standard respectively in different positions of said spacer block to positively maintain the adjustment of the standard in various predetermined positions, and means on the bolt portions for clamping the plate, beam and said standard together.

6. A clamping and adjusting device for a standard of a disk plOW, said plow having a beam and a front supporting means and rear supporting means for the beam, said device comprising a clamp engaging the beam and including a plate adapted to be clamped against said beam, clamping bolt portions extended in spaced relation through the plate below the beam at either side of said standard, other spaced bolt portions traversing the plate above the beam on either side of said standard, the spacing of the latter bolt portions being such as to provide for pivotal adjustment of said standard about a point in the region of the first mentioned bolt portions by sliding between the limits defined by the latter bolt portions, a spacer block disposed on one of the latter bolt portions to engage said standard and having a plurality of surfaces spaced at varying distances from said bolt portion to positively maintain the adjustment of said standard in various positions, and means on the bolt portions for clamping the plate, beam and standard together.

7. A clamping and adjusting device for a standard of a disk plow, said plow having a beam and a front supporting means and rear supporting means for the beam, said device including a clamp engaging the beam and including a plate adapted to be clamped against said beam, clampmg bolt portions extended in spaced relation through the plate below the beam at either side of said standard, other spaced bolt portions traversing the plate above the beam on either side of said standard, the spacing of the latter bolt portions being such as to provide for pivotal adjustment of said standard by sliding between the limits defined by the latter bolt portions, a pin and slot connection between said standard and said plate for substantially preventin endwise movement of said standard without interference with pivotal adjustment thereof, a spacer block disposed on one of said bolt portions and having a plurality of surfaces spaced at varying distances from said bolt portions, said surfaces being adapted to engage said standard respectively in different positions of said spacer block to positively maintain the adjustment of said standard, and means on the bolt portions for clamping the plate, beam and said standard togather.

8. A clamping and adjusting device for a standard of a disk plow, said plow having a beam and a front supporting means and rear supporting means for the beam, said device including a clamp engaging the beam and including a plate adapted to be clamped against said beam, clamping bolt portions extended in spaced relation through the plate below the beam at either side of said standard, other spaced bolt portions traversing the plate above the beam on either side of said standard, the spacing of the latter bolt portions being such as to provide for pivotal adjustment of said standard by sliding between the limits defined by the latter bolt portions, said standard providing a plurality of vertically disposed holes and said plate providing a substantially horizontally disposed slot, a pin traversing one of said holes and said slot for substantially preventing endwise movement of said standard while providing for pivotal adjustment thereof, said pin being engageable with others of said holes for predetermining the length of said standard below said beam, a spacer block disposed on one of the latter bolt portions and having a plurality of surfaces spaced at varying distances from said bolt portion, said surfaces being adapted to engage said standard respectively in different positions of said spacer block to positively maintain the adjustment of said standard, and means on the bolt portions for clamping the plate, beam and standard together.

9. A clamping and adjusting device for a. standard of a disk plow, said plow having a beam and front supporting means and rear supporting means for the beam, said device including a clamp engaging the beam and including a plate adapted to be clamped against said beam, clamping bolt portions extending in spaced relation to the plate below the beam at either side of said standard, said standard being adapted for rearward inclination for plowing and for forward inclination for trash covering, spaced bolt portions traversing the plate above the beam on either side of said standard, the spacing of the latter bolt portions being such as to provide for pivotal adjustment of said standard by sliding between the limits defined by the latter bolt portions, a spacer block adapted to be placed on one of said bolt portions and having a plurality of surfaces spaced at varying distances from said bolt portion, said surfaces being adapted to engage said standard respectively in different positions of said spacer block to positively maintain said standard in a rearwardly inclined. adjustment, and said block being adapted to be placed on the other bolt portion to positively maintain said standard in a forwardly inclined adjustment, and means on the bolt portions for clamping the plate, beam and said standard together.

ALVAI-I E. RUTTER.

REFERENCES CITED The, following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 231,633 Turner Aug. 24, 1880 611,655 Stone Oct. 4, 1898 1,420,451 Schulze June 20, 1922 1,500,367 Caughey July 8, 1924 1,926,326 Boda Sept. 12, 1933 FOREIGN PATENTS Number Country Date 451,443 Germany Oct. 22, 1927 

